Director/PDMR Shareholding

GlaxoSmithKline PLC
19 December 2006




   Notification of Transactions of Directors, Persons Discharging Managerial
                      Responsibility or Connected Persons



I give below details of changes in interests in the Ordinary Shares of
GlaxoSmithKline plc in respect of the under-mentioned person:





Mr R Bondy acquired a beneficial interest in 1 Ordinary Share purchased under a
Personal Equity Plan on 18 December 2006 at £13.37.





The Company and the above named individual were advised of these transactions on
19 December 2006.



This notification relates to a transaction notified in accordance with
Disclosure Rule 3.1.4R(1)(a).





S M Bicknell

Company Secretary



19 December 2006


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